CVE-2022-48476Network attack vector

Unauthenticated resource disclosure via path traversal

Published Apr 24, 2023 · Updated Feb 4, 2025

Path traversal in JetBrains Ktor before 2.3.0 allows remote attackers to read classpath resources through crafted HTTP paths. The resolveResource method accepts a relative resource path but fails to keep traversal segments within the configured resource package. Exposure requires an application route that serves classpath resources through this method; successful requests disclose resources outside the intended package.

CVSS severity7.5
High
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in JetBrains Ktor before 2.3.0 allows remote attackers to read classpath resources through crafted HTTP paths. The resolveResource method accepts a relative resource path but fails to keep traversal segments within the configured resource package. Exposure requires an application route that serves classpath resources through this method; successful requests disclose resources outside the intended package.

The record

CVE
CVE-2022-48476
Published
Apr 24, 2023
Updated
Feb 4, 2025
Vendor
JetBrains
Product
Ktor
Classifications
CWE-35, CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JetBrains · Ktorversion=0 <2.3.0

Published CVSS scores

7.5JetBrainsCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-35Path Traversal: '.../...//'
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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